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Medium: kernel

Description

**Issue Overview:** An out-of-bounds write flaw was found in the Linux kernel’s framebuffer-based console driver functionality in the way a user triggers ioctl FBIOPUT_VSCREENINFO with malicious data. This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2021-33655) The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss). This allows Xen PV guest OS users to cause a denial of service or gain privileges. (CVE-2022-36123) An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice. (CVE-2022-36879) **Affected Packages:** kernel **Issue Correction:** Run _yum update kernel_ to update your system. **New Packages:** aarch64:     kernel-4.14.290-217.505.amzn2.aarch64     kernel-headers-4.14.290-217.505.amzn2.aarch64     kernel-debuginfo-common-aarch64-4.14.290-217.505.amzn2.aarch64     perf-4.14.290-217.505.amzn2.aarch64     perf-debuginfo-4.14.290-217.505.amzn2.aarch64     python-perf-4.14.290-217.505.amzn2.aarch64     python-perf-debuginfo-4.14.290-217.505.amzn2.aarch64     kernel-tools-4.14.290-217.505.amzn2.aarch64     kernel-tools-devel-4.14.290-217.505.amzn2.aarch64     kernel-tools-debuginfo-4.14.290-217.505.amzn2.aarch64     kernel-devel-4.14.290-217.505.amzn2.aarch64     kernel-debuginfo-4.14.290-217.505.amzn2.aarch64 i686:     kernel-headers-4.14.290-217.505.amzn2.i686 src:     kernel-4.14.290-217.505.amzn2.src x86_64:     kernel-4.14.290-217.505.amzn2.x86_64     kernel-headers-4.14.290-217.505.amzn2.x86_64     kernel-debuginfo-common-x86_64-4.14.290-217.505.amzn2.x86_64     perf-4.14.290-217.505.amzn2.x86_64     perf-debuginfo-4.14.290-217.505.amzn2.x86_64     python-perf-4.14.290-217.505.amzn2.x86_64     python-perf-debuginfo-4.14.290-217.505.amzn2.x86_64     kernel-tools-4.14.290-217.505.amzn2.x86_64     kernel-tools-devel-4.14.290-217.505.amzn2.x86_64     kernel-tools-debuginfo-4.14.290-217.505.amzn2.x86_64     kernel-devel-4.14.290-217.505.amzn2.x86_64     kernel-debuginfo-4.14.290-217.505.amzn2.x86_64     kernel-livepatch-4.14.290-217.505-1.0-0.amzn2.x86_64 ### Additional References Red Hat: [CVE-2021-33655](<https://access.redhat.com/security/cve/CVE-2021-33655>), [CVE-2022-36123](<https://access.redhat.com/security/cve/CVE-2022-36123>), [CVE-2022-36879](<https://access.redhat.com/security/cve/CVE-2022-36879>) Mitre: [CVE-2021-33655](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33655>), [CVE-2022-36123](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-36123>), [CVE-2022-36879](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-36879>)


Affected Package


OS OS Version Package Name Package Version
Amazon Linux 2 kernel 4.14.290-217.505.amzn2
Amazon Linux 2 kernel-headers 4.14.290-217.505.amzn2
Amazon Linux 2 kernel-debuginfo-common-aarch64 4.14.290-217.505.amzn2
Amazon Linux 2 perf 4.14.290-217.505.amzn2
Amazon Linux 2 perf-debuginfo 4.14.290-217.505.amzn2
Amazon Linux 2 python-perf 4.14.290-217.505.amzn2
Amazon Linux 2 python-perf-debuginfo 4.14.290-217.505.amzn2
Amazon Linux 2 kernel-tools 4.14.290-217.505.amzn2
Amazon Linux 2 kernel-tools-devel 4.14.290-217.505.amzn2
Amazon Linux 2 kernel-tools-debuginfo 4.14.290-217.505.amzn2
Amazon Linux 2 kernel-devel 4.14.290-217.505.amzn2
Amazon Linux 2 kernel-debuginfo 4.14.290-217.505.amzn2
Amazon Linux 2 kernel-headers 4.14.290-217.505.amzn2
Amazon Linux 2 kernel 4.14.290-217.505.amzn2
Amazon Linux 2 kernel 4.14.290-217.505.amzn2
Amazon Linux 2 kernel-headers 4.14.290-217.505.amzn2
Amazon Linux 2 kernel-debuginfo-common-x86_64 4.14.290-217.505.amzn2
Amazon Linux 2 perf 4.14.290-217.505.amzn2
Amazon Linux 2 perf-debuginfo 4.14.290-217.505.amzn2
Amazon Linux 2 python-perf 4.14.290-217.505.amzn2
Amazon Linux 2 python-perf-debuginfo 4.14.290-217.505.amzn2
Amazon Linux 2 kernel-tools 4.14.290-217.505.amzn2
Amazon Linux 2 kernel-tools-devel 4.14.290-217.505.amzn2
Amazon Linux 2 kernel-tools-debuginfo 4.14.290-217.505.amzn2
Amazon Linux 2 kernel-devel 4.14.290-217.505.amzn2
Amazon Linux 2 kernel-debuginfo 4.14.290-217.505.amzn2
Amazon Linux 2 kernel-livepatch-4.14.290-217.505 1.0-0.amzn2

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